./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:24:46,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:24:46,822 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:24:46,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:24:46,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:24:46,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:24:46,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:24:46,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:24:46,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:24:46,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:24:46,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:24:46,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:24:46,866 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:24:46,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:24:46,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:24:46,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:24:46,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:24:46,870 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:24:46,870 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:24:46,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:24:46,872 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:24:46,873 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:24:46,873 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:24:46,874 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:24:46,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:24:46,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:46,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:24:46,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:24:46,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:24:46,898 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:24:46,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:24:46,900 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:24:46,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2023-11-23 20:24:47,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:24:47,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:24:47,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:24:47,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:24:47,287 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:24:47,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-23 20:24:50,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:24:51,239 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:24:51,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-23 20:24:51,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/data/087c2d11f/b41ded2c8ee94333921fd71c55b7f97c/FLAGfc272d22e [2023-11-23 20:24:51,299 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/data/087c2d11f/b41ded2c8ee94333921fd71c55b7f97c [2023-11-23 20:24:51,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:24:51,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:24:51,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:51,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:24:51,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:24:51,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:51" (1/1) ... [2023-11-23 20:24:51,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c5c976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:51, skipping insertion in model container [2023-11-23 20:24:51,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:51" (1/1) ... [2023-11-23 20:24:51,402 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:24:51,876 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:24:52,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:52,684 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:24:52,712 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:24:52,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:52,976 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:52,976 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:52,976 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:52,977 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:52,977 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:52,986 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:24:52,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52 WrapperNode [2023-11-23 20:24:52,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:52,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:52,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:24:52,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:24:52,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,070 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 90 [2023-11-23 20:24:53,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:53,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:24:53,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:24:53,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:24:53,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:24:53,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:24:53,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:24:53,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:24:53,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:52" (1/1) ... [2023-11-23 20:24:53,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:53,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:24:53,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:24:53,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:24:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:24:53,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:24:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:24:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:24:53,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:24:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:24:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:24:53,456 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:24:53,459 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:24:53,759 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:24:54,113 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:24:54,114 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:24:54,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:54 BoogieIcfgContainer [2023-11-23 20:24:54,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:24:54,119 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:24:54,119 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:24:54,188 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:24:54,190 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:54" (1/1) ... [2023-11-23 20:24:54,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:24:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:54,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 20:24:54,293 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 20:24:54,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:24:54,299 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:54,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:54,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:24:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:55,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:24:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:55,319 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:24:55,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:24:55 ImpRootNode [2023-11-23 20:24:55,347 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:24:55,347 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:24:55,347 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:24:55,348 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:24:55,348 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:54" (3/4) ... [2023-11-23 20:24:55,352 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:24:55,353 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:24:55,354 INFO L158 Benchmark]: Toolchain (without parser) took 4050.50ms. Allocated memory is still 163.6MB. Free memory was 130.1MB in the beginning and 96.6MB in the end (delta: 33.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-23 20:24:55,355 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:55,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1682.50ms. Allocated memory is still 163.6MB. Free memory was 130.1MB in the beginning and 112.3MB in the end (delta: 17.8MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-23 20:24:55,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.77ms. Allocated memory is still 163.6MB. Free memory was 112.3MB in the beginning and 109.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:24:55,357 INFO L158 Benchmark]: Boogie Preprocessor took 66.87ms. Allocated memory is still 163.6MB. Free memory was 109.5MB in the beginning and 108.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:24:55,357 INFO L158 Benchmark]: RCFGBuilder took 977.30ms. Allocated memory is still 163.6MB. Free memory was 107.4MB in the beginning and 71.1MB in the end (delta: 36.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 20:24:55,358 INFO L158 Benchmark]: CodeCheck took 1227.93ms. Allocated memory is still 163.6MB. Free memory was 71.1MB in the beginning and 96.8MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:55,359 INFO L158 Benchmark]: Witness Printer took 5.89ms. Allocated memory is still 163.6MB. Free memory was 96.8MB in the beginning and 96.6MB in the end (delta: 189.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:55,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1553. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:14}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_51_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_predec_51b_badSink(data) [L1567] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1682.50ms. Allocated memory is still 163.6MB. Free memory was 130.1MB in the beginning and 112.3MB in the end (delta: 17.8MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.77ms. Allocated memory is still 163.6MB. Free memory was 112.3MB in the beginning and 109.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.87ms. Allocated memory is still 163.6MB. Free memory was 109.5MB in the beginning and 108.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 977.30ms. Allocated memory is still 163.6MB. Free memory was 107.4MB in the beginning and 71.1MB in the end (delta: 36.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * CodeCheck took 1227.93ms. Allocated memory is still 163.6MB. Free memory was 71.1MB in the beginning and 96.8MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.89ms. Allocated memory is still 163.6MB. Free memory was 96.8MB in the beginning and 96.6MB in the end (delta: 189.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:24:55,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:24:58,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:24:58,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:24:58,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:24:58,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:24:58,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:24:58,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:24:58,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:24:58,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:24:58,632 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:24:58,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:24:58,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:24:58,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:24:58,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:24:58,635 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:24:58,636 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:24:58,636 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:24:58,636 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:24:58,637 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:24:58,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:24:58,638 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:24:58,639 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:24:58,640 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:24:58,640 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:24:58,641 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:24:58,642 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:24:58,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:24:58,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:58,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:24:58,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:24:58,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:24:58,647 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:24:58,647 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:24:58,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:24:58,648 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:24:58,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:24:58,649 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2023-11-23 20:24:59,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:24:59,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:24:59,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:24:59,214 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:24:59,215 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:24:59,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-23 20:25:02,844 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:25:03,446 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:25:03,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2023-11-23 20:25:03,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/data/6ccd87a3f/b47b690a09a34e8dac5aa762f3bb9619/FLAG23628fadc [2023-11-23 20:25:03,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/data/6ccd87a3f/b47b690a09a34e8dac5aa762f3bb9619 [2023-11-23 20:25:03,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:25:03,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:25:03,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:25:03,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:25:03,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:25:03,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:25:03" (1/1) ... [2023-11-23 20:25:03,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b83ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:03, skipping insertion in model container [2023-11-23 20:25:03,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:25:03" (1/1) ... [2023-11-23 20:25:03,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:25:04,096 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:25:04,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:25:04,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:25:04,881 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:25:04,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:25:05,208 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:25:05,208 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:25:05,209 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:25:05,209 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:25:05,209 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:25:05,219 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:25:05,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05 WrapperNode [2023-11-23 20:25:05,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:25:05,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:25:05,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:25:05,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:25:05,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,334 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-11-23 20:25:05,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:25:05,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:25:05,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:25:05,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:25:05,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,409 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:25:05,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:25:05,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:25:05,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:25:05,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:25:05" (1/1) ... [2023-11-23 20:25:05,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:25:05,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:25:05,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:25:05,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:25:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:25:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:25:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:25:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:25:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:25:05,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:25:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:25:05,779 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:25:05,783 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:25:06,001 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:25:06,143 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:25:06,144 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:25:06,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:06 BoogieIcfgContainer [2023-11-23 20:25:06,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:25:06,150 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:25:06,150 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:25:06,163 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:25:06,163 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:06" (1/1) ... [2023-11-23 20:25:06,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:25:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:25:06,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-23 20:25:06,265 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-23 20:25:06,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:25:06,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:25:06,272 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:25:06,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:25:06,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:25:06,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:25:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:25:06,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:25:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:25:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:25:06,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:25:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:25:06,696 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:25:06,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:25:06,704 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:25:06,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:25:06 ImpRootNode [2023-11-23 20:25:06,737 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:25:06,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:25:06,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:25:06,738 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:25:06,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:25:06" (3/4) ... [2023-11-23 20:25:06,740 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:25:06,786 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:25:06,786 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:25:06,787 INFO L158 Benchmark]: Toolchain (without parser) took 3268.49ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 48.7MB in the end (delta: 20.0MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-11-23 20:25:06,788 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 71.3MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:25:06,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1698.19ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 58.6MB in the end (delta: 10.2MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2023-11-23 20:25:06,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.02ms. Allocated memory is still 96.5MB. Free memory was 58.6MB in the beginning and 55.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:25:06,790 INFO L158 Benchmark]: Boogie Preprocessor took 88.32ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 53.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:25:06,790 INFO L158 Benchmark]: RCFGBuilder took 724.38ms. Allocated memory is still 96.5MB. Free memory was 53.4MB in the beginning and 66.0MB in the end (delta: -12.6MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-11-23 20:25:06,791 INFO L158 Benchmark]: CodeCheck took 587.28ms. Allocated memory is still 96.5MB. Free memory was 66.0MB in the beginning and 50.8MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:25:06,792 INFO L158 Benchmark]: Witness Printer took 48.98ms. Allocated memory is still 96.5MB. Free memory was 50.8MB in the beginning and 48.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:25:06,795 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1567]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_51_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_predec_51b_badSink(data) [L1567] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 71.3MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1698.19ms. Allocated memory is still 96.5MB. Free memory was 68.8MB in the beginning and 58.6MB in the end (delta: 10.2MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.02ms. Allocated memory is still 96.5MB. Free memory was 58.6MB in the beginning and 55.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.32ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 53.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 724.38ms. Allocated memory is still 96.5MB. Free memory was 53.4MB in the beginning and 66.0MB in the end (delta: -12.6MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * CodeCheck took 587.28ms. Allocated memory is still 96.5MB. Free memory was 66.0MB in the beginning and 50.8MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 48.98ms. Allocated memory is still 96.5MB. Free memory was 50.8MB in the beginning and 48.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:25:06,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cd3b025-70b1-4527-aabd-38b8500bc103/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)